Rewriting abstract

[jakearchibald]

Fixes #1493

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[jakearchibald]

@jungkees @slightlyoff @mattto any thoughts about this before I merge?

[jungkees]

It seems to me that the first paragraph of the change seems a bit too specific in using terms. I think abstract should just explain what it is simply. In that regard, the original text reads easier.

To @annevk's point, I'll leave a comment in the issue.

[mfalken]

I'm OK with this PR. Happy to take another look if you incorporate @jungkees's suggestions too.

[jakearchibald]

@jungkees

It seems to me that the first paragraph of the change seems a bit too specific in using terms.

Hmm, I was trying to describe what the service worker is before things like the fetch event are added on top, and why it's used for particular event rather than just firing events in . a document.

Eg, I could remove some of the terms & make it:

The core of this specification is a worker that wakes to receive events. This provides an event destination that can be used when other destinations would be inappropriate, or no other destination exists.

Is that better?

[jungkees]

I got your point. It looks good to me. Thanks for addressing my comment.